A bit off-topic, but there's a great rant on the various Date types (with
some history) here:
http://jroller.com/page/cpurdy?entry=the_seven_habits_of_highly

I like this part:

"As far as java.util.Calendar goes, I'm sure it has a purpose, but since
we've been on the Gregorian now for several friggin' centuries (and with no
sign of imminent change), I think we'd be safe having Calendar be one of
those classes that is neither seen nor heard except in the 0.000001% chance
that you actually need to do something with the scrolls of dead monks."

WILL


On 6/14/07, Siegfried Goeschl <[EMAIL PROTECTED]> wrote:

Hi Jill,

+) Calendar is an abstract class and usually the only concrete
implementation is an GregorianCalendar until Java 6 (see

http://weblogs.java.net/blog/joconner/archive/2005/09/overview_of_mus_1.html
).
There you also have a Japanese calendar

+) I'm not aware of any thread-safety issues apart from
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6178997

Cheers,

Siegfried Goeschl



jill han wrote:
> I know it is not related to turbine question, but I still count on your
> help.
> Here is a code snippet
> ****************
> private List getResponsesToProcess() throws TorqueException
> {
> // get the current date and set the time to midnight
> Calendar today = Calendar.getInstance();
> today.set(Calendar.HOUR_OF_DAY, 0);
> today.set(Calendar.MINUTE, 0);
> today.set(Calendar.HOUR_OF_DAY, 0);
> today.set(Calendar.MILLISECOND, 0);
>
> // select all responses that are email
> Criteria crit = new Criteria();
> crit.addJoin(XXXPeer.DELIVERY_METHOD_ID, XXXXPeer.OBJECT_ID);
> ....
> crit.add(ResponsePeer.DELIVERY_DATE, today.getTime(),
> Criteria.LESS_EQUAL);
>
> List results = ResponsePeer.doSelect(crit);
>
> crit = new Criteria();
> crit.addJoin(XXXPeer.DELIVERY_METHOD_ID, XXXXPeer.OBJECT_ID);
> ...
> results.addAll(XXXPeer.doSelect(crit));
>
> return results;
> }
> *****************
> However someone suggested to
> "Synchronize the part of the code that uses the Calendar objects or
> create new objects of GregorianCalendar and avoid using
> Calender.getInstance unless that part of the code is synchronized"
> I didn't see why it needs synchronization and the applicable difference
> of GregorianCalendar and Calender object.
>
> I really appreciate if someone could give some insights into it
>
>
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www.forio.com

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